* {
  margin: 0;
  padding: 0;
  font-size: 18px;
}

.nav {
  display: flex;
  align-items: center;
  width: 1200px;
  margin: 10px auto 0 auto;
}
.nav .item {
  color: #333;
  text-decoration: none;
  padding: 4px 6px;
  margin-right: 20px;
}
.nav .active {
  background: #3196fa;
  border-radius: 4px;
  color: #fff;
}

.info {
  text-align: center;
  padding: 30px 0;
}

.main-content {
  border: 1px solid #ccc;
  width: 1200px;
  margin: 20px auto;
  padding: 10px;
  box-sizing: border-box;
}

.footer {
  text-align: center;
}
.footer .submit {
  padding: 4px 12px;
  border-radius: 5px;
  display: inline-block;
  color: #fff;
  background: #3196fa;
  cursor: pointer;
}

select {
  border-radius: 5px;
  border: 1px solid #3196fa;
  padding: 4px 8px;
  outline: none;
}

input {
  outline: none;
  border: 1px solid #3196fa;
  padding: 5px;
  border-radius: 5px;
}

h1 {
  padding: 4px 0;
}

.task .tool .item {
  display: inline-block;
  color: green;
  cursor: pointer;
}
.task .list .item {
  display: flex;
  padding: 5px 0;
}
.task .list .item .left {
  margin-right: 10px;
}
.task .list .item .left .idx {
  display: inline-block;
  width: 40px;
  text-align: center;
}
.task .list .item .add_line {
  display: inline-block;
  color: green;
  cursor: pointer;
  margin-left: 10px;
}
.task .list .item .del {
  cursor: pointer;
  color: #ff0000;
  margin-left: 10px;
}

.member .list .item textarea {
  width: 100%;
  padding: 5px;
  box-sizing: border-box;
}